Range.



PATENTED DEC. ll, 1906.

G. F. NOLTE.

RANGE. APIPLIGATION )FILED MAY5,1906.

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ATTQRNEX GEORGE F. NORTE, OF ST. LOUIS, MISSOURI.

RANGE.

Specification of Letters Patent.

Patented Dec. 11, 1906.

Application filed May 5,1906; Serial No. 315.385.

To all whom if may concern:

Be it known that l, GEORGE F. NOI/rn, a citizen of the United States, residing at St. Louis, State of Missouri, have invented certain new and useful improvements in Ranges, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, forming a part thereof.

My invention has relation to improvements in ranges or stoves; and it consists in the novel details of construction more fully set forth in the specification and pointed out in the claims.

In the drawings, Figure l is a plan of the front of the range with portion of the top removed. Fig. 2 is a transverse vertical section on line 2 2 of Fig. l. Fig. 3 is a longitudinal vertical section on line 3 3 of Fig. l. Fig. 4 is a perspective of the key for locking the center plate of the rear of the fire-box, and Fig. 5 is a sectional detail on line 5 5 of *Fig 2.

The present improvement has special relation to the fire-box of a cooking stove or range; and its specific object is to produce a construction eminently adapted to deliver air into the fire-box and at the same time provide means for heating the air in its passage toward the fire-box and to keep cool the outer walls of the range.

A further object is to construct the rear wall of the fire-box out of a number of sections which can be assembled and readily locked in place, all as will more fully appear from a detailed `description-of the invention, which is as follows:

Referring to the drawings, R represents a range, and F the lire-box thereof, whose grate is represented by G. The fire-box is composed of the side walls l l', disposed parallel to the adjacent side walls of the range,

said walls l 1 being spaced from the rangewalls and engaging the latter near the top by a gradual curve c, Fig. 2, the upper rear corner of each wall l l being provided with a web or wall 2 to afford for said wall a more extended bearing against the range Wall. The fire-box is further composed of the front forwardly and upwardly inclined wall 3 and a rear rearwardly and upwardly inclined wall composed of the outer sections 4 4 and a central section 4 the oven O being directly in the rear of the wall 4 4 4. The rear upper edge of the section 4 terminates in a dovetail extension 4, which its snugly a corresponding dovetail recess 5 of a key or plate 6, the latter being secured in position to the top of the oven, the edge of the dovetail recess being reinforced by a bead 7. Should it be desirable at any time to dismantle the fire-box, the key 6 is first removed, whereupon the section 4 is withdrawn, leaving the remaining sections free to be removed. The remaining walls of the fire-box are then also free to be removed from the range. That the middle section 4 may effectively lock the adjacent sections 4 4 in osition, it is made to overlap the adjacent e vges of said sections, as shown by the broken parts in Fig. 2 and also in the sectional detail in Fig. 5. i

As seen in Fig. 3, the front and rear walls of the fire-box are inclined to the front wall of the range and the adjacent wall of the oven O, the air-space between the fire-box walls and the range-walls being in free communication with the air-spaces between the fire-box walls l 1 and their adjacent rangewalls, so that the several walls of the fire-box are virtually surrounded by an air-chamber, to which the air entering from below the grate has free access. Of course this air has access to the fire-box but it is desirable in order to keep the outer walls of the range comparatively cool that the air confined between the range-walls and fire-box walls shall freely circulate to admit fresh particles of air. This circulation is effected by providing means for the escape of the air into the fire-box, this method having the additional advantage in that a maximum quantity of oxygen is supplied to the fuel. To accomplish this, l provide the walls 1 3 4 4 4 with a series of bosses or nipples 8 distributed to the best advantage, each nipple serving to deliver a jet of air through the inner end of a conical or tapering opening 9, formed jointly in the fire-box wall and in the nipple, the tapering character of the opening serving to insure the delivery of a positive jet of air into the fire-box, and hence increasing the combustion and making available a maximum number of heat units contained in the fuel.

The top of the section 4 is provided with a socket 10 for the insertion of the post 1l, intended to support the top member of the stove between the lids thereof. Of course this post is a well-known expedient and l lay no claim thereto. The wall 1 is not provided with jet-nozzles 8, since this wall may serve, in conjunction with the door D, as a through the grate G;

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means of introducing fuel therethrough into the lire-box. Preferably the fuel is introduced by removing the lids, in which case the wall l need not be provided with any fuelopening and the door D may then serve as an l ornamental feature but even should the wall 1 subserve no special function it need not be perforated for the admission of air into the lire-box, as practice has demonstrated that all the available oxygenmay be introduced through the remaining walls of the fire-box and through the grate.

Having described my invention, what I claim is* l, In a range, a lire-box composed of side and inclined front and rear walls spaced a suitable distance from the corresponding walls of the range, the rear wall being composed of a series of overlapping sections, the middle section having a rear terminal dovetail extension bearing on the roof of the oven,

and a key secured to the oven-roof and having a dov'etail recess for engaging the dovetail extension of the said middle section whereby the parts are securely locked, substantially as set forth.

2. In a range, a ireboX having a rear upwardly-inclined wall composed of a series of overlapping sections, a rear terminal dovetail extension for the middle section, a kev or plate having a dovetail recessfor receiving said extension, the walls of the recess being bounded by a stiiening-bead, and means for securing the key to the top wall of the oven, whereby the sections are locked in position, substantially as set forth.

In testimony whereof l affix my signature in presence of two witnesses.

y GEORGE F. NOLTE. Witnesses:

EMIL STAREK,

MARY D. WHITCOMB. 

